Concurrency in Go and Java: Performance analysis

Go is a new programming language developed by Google. Although it is still young compared to other programming languages, it already has modern and powerful features inherited from existing programming languages, and some of these are similar to Java. Go is designed for quick time development. Concurrency is the one of the main its features. In this paper, we analyze the performance of Go, and compare it with Java from two aspects: compile time and concurrency. There are many studies about the performance analysis and comparison of programming languages, but only a few publications investigate Go. Some of Go performance evaluation are based on the experimental release of Go. To analyze concurrency features, we implement simple matrix multiplication programs in both Go and Java. Java implementation uses Java Thread, and Go implementation uses Gor-outine and Channel. From the experiment, Go derived better performance than Java in both compile time and concurrency. Moreover, Go code shows the ease of concurrent programming. Go is still young, but we are convinced that Go will become the mainstream.